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linux/drivers/firmware
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Sudeep Holla 96d529bac5 firmware: arm_scmi: fix divide by zero when sustained_perf_level is zero 
Firmware can provide zero as values for sustained performance level and
corresponding sustained frequency in kHz in order to hide the actual
frequencies and provide only abstract values. It may endup with divide
by zero scenario resulting in kernel panic.

Let's set the multiplication factor to one if either one or both of them
(sustained_perf_level and sustained_freq) are set to zero.

Fixes: a9e3fbfaa0 ("firmware: arm_scmi: add initial support for performance protocol")
Reported-by: Ionela Voinescu <ionela.voinescu@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2018-09-06 09:59:40 -07:00
..
arm_scmi firmware: arm_scmi: fix divide by zero when sustained_perf_level is zero 2018-09-06 09:59:40 -07:00
broadcom firmware: bcm47xx_nvram: Support small (0x6000 B) NVRAM partitions 2018-04-23 16:39:35 +01:00
efi fbdev changes for v4.19: 2018-08-23 15:44:58 -07:00
google firmware: vpd: Fix section enabled flag on vpd_section_destroy 2018-08-02 10:34:12 +02:00
meson firmware: meson-sm: rework meson_sm_init to use module_platform_driver_probe 2018-03-07 17:33:52 -08:00
tegra firmware: tegra: adjust tested variable 2018-03-08 14:43:13 +01:00
arm_scpi.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
arm_sdei.c firmware: arm_sdei: Fix return value check in sdei_present_dt() 2018-01-15 18:16:59 +00:00
dcdbas.c platform/x86: Fix dell driver init order 2018-03-14 11:05:53 -07:00
dcdbas.h
dell_rbu.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
dmi_scan.c firmware: dmi: Add access to the SKU ID string 2018-06-17 14:09:42 +02:00
dmi-id.c firmware: dmi: Add access to the SKU ID string 2018-06-17 14:09:42 +02:00
dmi-sysfs.c firmware: dmi: handle missing DMI data gracefully 2018-02-03 11:25:20 +01:00
edd.c edd: don't spam log if no EDD information is present 2018-03-27 09:51:23 +02:00
iscsi_ibft_find.c
iscsi_ibft.c ibft: Deprecate pci_get_bus_and_slot() 2018-01-11 17:26:55 -06:00
Kconfig firmware: arm_scmi: add device power domain support using genpd 2018-02-28 16:37:57 +00:00
Makefile firmware: arm_scmi: add basic driver infrastructure for SCMI 2018-02-28 16:37:57 +00:00
memmap.c
pcdp.c x86, mpparse, x86/acpi, x86/PCI, x86/dmi, SFI: Use memremap() for RAM mappings 2017-07-18 11:37:58 +02:00
pcdp.h
psci_checker.c drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests 2018-07-26 00:16:58 -07:00
psci.c firmware/psci: Expose SMCCC version through psci_ops 2018-02-06 22:54:11 +00:00
qcom_scm-32.c firmware: qcom: scm: Fix crash in qcom_scm_call_atomic1() 2018-05-24 22:36:45 -05:00
qcom_scm-64.c remoteproc updates for v4.15 2017-11-17 20:14:10 -08:00
qcom_scm.c firmware: qcom: scm: Add ipq4019 soc compatible 2018-04-25 00:10:33 -05:00
qcom_scm.h remoteproc updates for v4.15 2017-11-17 20:14:10 -08:00
qemu_fw_cfg.c media: headers: fix linux/mod_devicetable.h inclusions 2018-08-02 18:30:54 -04:00
raspberrypi.c firmware: raspberrypi: Remove VLA usage 2018-07-09 10:47:29 -07:00
scpi_pm_domain.c firmware: scpi: add device power domain support using genpd 2016-06-21 10:26:51 +01:00
ti_sci.c - Error path bug fix for overflow tests (Dan) 2018-06-12 18:28:00 -07:00
ti_sci.h firmware: ti_sci: Switch to SPDX Licensing 2018-05-04 23:10:23 -07:00